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Are mouse messages captured by this control?
Source position: controls.pp line 1218
protected property TControl.MouseCapture: Boolean |
Mouse messages can be sent to a capturing control. This occurs automatically when a control is dragged. In normal operation all mouse messages are sent to the control under the mouse pointer.
Applications should capture mouse events only for special purposes, and release the capture as soon as a the target position has been determined. Limited user feedback is possible while the mouse is captured, but not all application controls will work properly so long.
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